| Miho Arai | |
| Strokes: | Synchronized swimming |
| Birth Date: | 3 September 1988[1] |
| Birth Place: | Tokyo, Japan |
| Height: | 1.67 m |
| Show-Medals: | no |
is a retired Japanese competitor in synchronized swimming.
She won two silver medals at the 2010 Asian Games and two silver medals at the 2014 Asian Games. She also won two silver medals at the 2014 FINA Synchronized Swimming World Cup.